Population Increase in the Amsterdam Island Fur SealArctocephalus Tropicalisat Gough Island
Open Access
- 1 January 1980
- journal article
- research article
- Published by Taylor & Francis in South African Journal of Zoology
- Vol. 15 (4) , 229-234
- https://doi.org/10.1080/02541858.1980.11447716
Abstract
Population size of Arctocephalus tropicalis on Gough Island was determined by direct censuses of parts of the coast during the summers of 1974 – 1976 and 1977 – 1978 and correction factors for undercounting and seasonal cycles were applied. Present population size is approximately 200 000, giving an intrinsic rate of increase of 15,9% per year since 1955/56, but is now approaching the negative acceleration phase in population growth as a result of optimal breeding space becoming limited. An extension of breeding colony sites has also occurred since 1955.Keywords
This publication has 1 reference indexed in Scilit:
- CHAPTER 1. DISTRIBUTION AND ABUNDANCE OF WHALES IN RELATION TO BASIC PRODUCTIVITYPublished by Harvard University Press ,1974